Abstract
The 5α-reductase converts testosterone to dihydrotestosterone (DHT), and excess DHT could cause androgen-related diseases such as androgenetic alopecia and benign prostatic hyperplasia (BPH). To discover new 5α-reductase inhibitors, effective drug screening method with high throughput is thus essential. In this study, fully automated chip-based nanoelectrospray ionization-mass spectrometry (nano-ESI-MS) was innovatively utilized as a screening tool for 5α-reductase inhibitory assay in direct infusion mode, which simplified sample pretreatment and greatly improved experimental efficiency. The preliminary data indicated that curcumin, a natural anti-inflammatory compound, exhibited notably 5α-reductase inhibition activity. Moreover, the obtained results of the chip-based nano-ESI-MS were well consistent with those of HPLC-MS, which suggested that the chip-based nano-ESI-MS could be treated as a rapid and high-throughput drugs screening strategy in pharmaceutical development. Graphical abstract.
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